Simplify the following equation
[K-L2-K+L2]4K = a/b
[(K-L)2-K+L2]4K = abK2+L2-2KL-K2+L2+2KL4K= ab
=> - 4KL/4K = a/b
=> L = - a/b
=> bL = -a
If a - b = 5 and a2 + b2 = 97, ab = ?
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